SelectOneRadio renders as an HTML table. Each button is a cell in that table. However, it's an anonymous cell. So the solution is to apply a styleClass to the selectOneRadio and use the magic of CSS to qualify it. If my CSS memory serves, that means something like:
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.